Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for efficient phosgene usage in the preparation of polycarbonates

Process for efficient phosgene usage in the preparation of polycarbonates

US Patent 5416185 · Granted May 16, 1995

Estimated economic value: $23,959,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method for relieving sinus congestion2019
Pulsed release phenylephrine dosage forms2019
Method for relieving sinus congestion2019
Clamping rack2018
Gripping rack2018
Pulsed release phenylephrine dosage forms2017
Polymeric blend comprising polylactic acid2015
Suspension packaging with on-demand oxygen exposure2014
Intercalated layered silicate2013
Package with on-demand product elevation2013
Multilayer film comprising polylactic acid2012
Fired furnace operation and apparatus2005